len_is_null      2869 ext/mbstring/mbstring.c 	zend_bool len_is_null = 1;
len_is_null      2872 ext/mbstring/mbstring.c 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "sl|l!s", &str, &str_len, &from, &len, &len_is_null, &encoding, &encoding_len) == FAILURE) {
len_is_null      2891 ext/mbstring/mbstring.c 	if (len_is_null) {
len_is_null      2944 ext/mbstring/mbstring.c 	zend_bool len_is_null = 1;
len_is_null      2951 ext/mbstring/mbstring.c 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "sl|l!s", (char **)&string.val, &string_len, &from, &len, &len_is_null, &encoding, &encoding_len) == FAILURE) {
len_is_null      2970 ext/mbstring/mbstring.c 	if (len_is_null) {